nicotags32
nicotags32
05-03-2017
Mathematics
contestada
solve for x: (With steps pls):
x³eˣ-4xeˣ=0
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cynthia32
cynthia32
05-03-2017
When e^x=0 there is not an x value because there is a horizontal asymptote x=0.
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morgaine816
morgaine816
05-03-2017
You can solve it with natural logs:
x³eˣ-4xeˣ=0
x³eˣ=4xeˣ
natural log both sides
ln
x³eˣ=ln4xeˣ
Distribute the ln, bring the x exponent down and cancel out the ln e combinations
lnx³*xlne=ln4x*xlne
xlnx³=xln4x x's and ln's cancel out
x³=4x
x=2
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